Finding the Fourth Proportional to 612,201.70, 918,302.55 and 494,103.70
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Solution
The fourth proportional to 612,201.70, 918,302.55 and 494,103.70 is: 741,155.55
Step by Step Solution
- Step 1: Write the proportion equation
612,201.70 : 918,302.55 = 494,103.70 : x - Step 2: Convert to fraction form
612,201.70/918,302.55 = 494,103.70/x - Step 3: Cross multiply
612,201.70x = 918,302.55 × 494,103.70 - Step 4: Simplify right side
612,201.70x = 453,736,687,674.44 - Step 5: Solve for x
x = 453,736,687,674.44/612,201.70 - Step 6: Final answer
x = 741,155.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.